Questions related to REST APIs like the technical differences between different HTTP methods. DBMS concepts like Indexing, Types of Keys, Joins, Deadlock, etc. Java questions related to OOPs, String, exception handling, multithreading, etc. Some questions related to Docker were also asked.
Java Backend Developer Interview Questions
320 java backend developer interview questions shared by candidates
Which data structure has fast insertion and update, linked List or Array List?
Design a rate limiter
Talks about projects that you have done and a lot of your understanding of java implementations.
Q. Stair case problem Q. Sorted rotated array find maximum number. Q. Find max length of string from array of string using lambda. Q. Create list of common skills employee using key as skill using lambda
How many threads are allowed in a thread pool?
Normal Java Questions were asked. If you have prepared well, then you can answer.
Java 8 question - what are the usages of java 8 new additions
Q: Overloading vs overriding? Q: Array vs ArrayList? Q: Hashset vs Hashmap? Q: Final, finalize, finally? Q: try-catch-finally? Q: Comparable vs comparator? Q: @PathParam vs @QueryParam? Q: How to pass header into method parameter of a GET endpoing? Q: API flow of custom exception handling? Q: How to write a GET endpoint? Q: What happens if user uses POST request for a GET endpoint?
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